22122002020 has 12 divisors (see below), whose sum is σ = 46456204284. Its totient is φ = 8848800800.

The previous prime is 22122001997. The next prime is 22122002027. The reversal of 22122002020 is 2020022122.

It can be written as a sum of positive squares in 2 ways, for example, as 6068098404 + 16053903616 = 77898^2 + 126704^2 .

It is not an unprimeable number, because it can be changed into a prime (22122002027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 553050031 + ... + 553050070.

It is an arithmetic number, because the mean of its divisors is an integer number (3871350357).

Almost surely, 2^22122002020 is an apocalyptic number.

22122002020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22122002020 is an abundant number, since it is smaller than the sum of its proper divisors (24334202264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22122002020 is a wasteful number, since it uses less digits than its factorization.

22122002020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1106100110 (or 1106100108 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 22122002020 its reverse (2020022122), we get a palindrome (24142024142).

The spelling of 22122002020 in words is "twenty-two billion, one hundred twenty-two million, two thousand, twenty".